JP2018105552A - Refrigerant container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerant container having both of a receiver function and an accumulator function, and having a rational structure with a small number of components.SOLUTION: A refrigerant container has a tank 10 capable of temporarily storing refrigerant. At an upper part of the tank 10, a gas-liquid inflow port 15, a liquid-phase outflow port 16 and a gas-phase outflow port 17 are provided. Refrigerant introduced from the gas-liquid inflow port 15 is separated into liquid-phase refrigerant and gas-phase refrigerant. The refrigerant container has: a receiver function of leading out only the separated liquid-phase refrigerant to an expansion valve side through the liquid-phase outflow port 16; and an accumulator function of leading out the separated liquid-phase refrigerant together with oil contained in liquid-phase refrigerant to a compressor suction side through the gas-phase outflow port 17.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a refrigerant container used in a heat pump refrigeration cycle (hereinafter referred to as a heat pump system) such as a car air conditioner, and in particular, separates a refrigerant into a liquid phase refrigerant and a gas phase refrigerant, and the separated liquid. The present invention relates to a refrigerant container having both a receiver function for deriving only the phase refrigerant to the expansion valve side and an accumulator function for deriving the separated gas-phase refrigerant (+ oil) to the compressor suction side.

  As a heat pump system constituting a car air conditioner or the like, for example, as described in Patent Document 1, in addition to a compressor, a condenser, an evaporator, an expansion valve, a flow path switching valve, an on-off valve, etc., gas-liquid separation is performed. Some have a receiver for conducting only liquid phase refrigerant to the expansion valve, and an accumulator for performing gas-liquid separation and guiding gas phase refrigerant (including oil) to the suction side of the compressor.

  In such a heat pump system including a receiver and an accumulator, there is a demand for a reduction in the space occupied by the entire system, a reduction in the number of parts, and the like.

JP 2013-184596 A JP 2012-136147 A

  As one measure in line with the above request, for example, as described in Patent Document 2 (FIG. 16), the refrigerant is separated into a liquid phase refrigerant and a gas phase refrigerant in one tank (container), and this separation is performed. It is conceivable to provide a receiver function for deriving only the liquid phase refrigerant to the expansion valve side and an accumulator function for deriving the separated gas-phase refrigerant to the compressor suction side.

  However, Patent Document 2 only shows that one container functions as a receiver and an accumulator, and does not disclose the internal structure of the container at all.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a refrigerant container having a rational structure with a small number of parts, which has both a receiver function and an accumulator function.

  In order to achieve the above object, the refrigerant container according to the present invention basically has a tank capable of temporarily storing the refrigerant, and a gas-liquid inlet, a liquid phase is provided above the tank. An outlet for gas and an outlet for gas phase are provided, the refrigerant introduced from the gas-liquid inlet is separated into a liquid phase refrigerant and a gas phase refrigerant, and only the separated liquid phase refrigerant is used for the liquid phase A receiver function that leads to the expansion valve side through the outlet, and the separated gas-phase refrigerant to the compressor suction side through the gas-phase outlet with the oil contained in the liquid-phase refrigerant. It is characterized by having an accumulator function to derive.

  In a preferred aspect, the tank is hermetically closed at the upper surface thereof by a lid member provided with the gas-liquid inlet, the liquid-phase outlet, and the gas-phase outlet, and the tank in the tank is closed. A cap-shaped or reverse thin bowl-shaped gas-liquid separator smaller than the inner diameter of the tank is disposed below the lid member, and the upper end of the gas-liquid separator is between the lid member and the bottom of the tank. A lower feed passage portion for opening the lower portion of the body to guide the gas-phase refrigerant at the top of the tank to the vicinity of the bottom of the tank, and the vapor-phase refrigerant from the lower feed passage portion to the gas-phase outlet. An upper feed pipe part whose upper part projects upward from the upper end of the lower feed flow path part, and a liquid phase inner part for guiding the liquid refrigerant near the tank bottom part to the liquid phase outlet. A gas-liquid outflow pipe divided into a pipe part is arranged, and a strainer is provided at the lower end of the gas-liquid outflow pipe

  In a further preferred aspect, the gas-liquid separator is sandwiched between the lid member and the gas-liquid outflow pipe.

  In another preferred aspect, an on-off valve is provided for opening and closing the gas-phase refrigerant outlet flow path in the accumulator function part.

  In a further preferred aspect, the on-off valve is disposed on the upper side of the tank.

  In a further preferred aspect, the on-off valve is an electromagnetic type.

  Since the refrigerant container according to the present invention has both the receiver function and the accumulator function, the tank part, the inlet part, the gas-liquid separation part, the outflow pipe part, the strainer part, etc. in the receiver and the accumulator can be shared. The heat pump system adopting the refrigerant container can reduce the space occupied by the entire system and reduce the number of parts, thereby reducing costs and downsizing. Can be achieved.

  Further, an opening / closing valve is attached to the refrigerant container, and the opening / closing (ON-OFF) of the opening / closing valve can be switched between a state functioning as a receiver and a state functioning as an accumulator according to the operating state of the system. Compared with the case where the system is provided outside, the piping system of the system can be simplified.

The top view of one embodiment of the refrigerant container concerning the present invention. The partial notch longitudinal cross-sectional view which follows the AC arrow line which passes along O in FIG. FIG. 3 is a partially cutaway cross-sectional view taken along the line B-C along line O in FIG. 1. Sectional drawing which follows the VV arrow line of FIG. The longitudinal cross-sectional view which shows the state before the assembly | attachment to the tank of the gas-liquid outflow pipe | tube shown by FIG. 5A is a top view of the gas-liquid outflow pipe shown in FIG. 5, FIG. 5B is a horizontal sectional view of the middle part of the gas-liquid outflow pipe, FIG. 5C is a bottom view of the gas-liquid outflow pipe, and FIG. The top view of the baseplate attached and fixed to the lower end part of a liquid outflow tube. The refrigerant | coolant flow at the time of the air_conditionaing | cooling operation in the refrigerant | coolant container of this embodiment is shown, (A) is a partially notched top view, (B) is a partially notched cross-sectional view. The refrigerant | coolant flow at the time of the heating operation in the refrigerant | coolant container of this embodiment is shown, (A) is a partially notched top view, (B) is a partially notched cross-sectional view.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a top view of an embodiment of a refrigerant container according to the present invention, FIG. 2 is a partially cutaway longitudinal sectional view taken along line A-C in FIG. 1, and FIG. 3 passes through O in FIG. It is a partial notch sectional view which follows a BC arrow line.

  The refrigerant container 1 of the illustrated embodiment is used in, for example, a heat pump system constituting a car air conditioner for an electric vehicle, and has a bottomed cylindrical tank 10 made of metal such as stainless steel or aluminum alloy. The upper surface opening is hermetically closed by the same metal lid member 12. In addition, the refrigerant container 1 of this embodiment is installed vertically as shown in the figure, that is, with the lid member 12 on the upper (top) side and the bottom 13 of the tank 10 on the lower (ground) side.

  The lid member 12 is provided with a gas-liquid inlet 15 and a stepped large-diameter gas-phase outlet 17 that pass through the lid member 12 and open upward and downward, and have a relatively small diameter. The liquid phase outlet 16 is provided. The liquid-phase outlet 16 is accompanied by a channel portion 16a that is laid down at the bottom and is L-shaped and open at one end (lower end). The other end of the passage portion 16a (the other opening in the horizontal direction) is closed with a plug 16b.

  On the upper side of the lid member 12 so as to cover a portion other than the gas-liquid inlet 15, a connection adapter 50 having a rectangular shape in plan view and a rectangular shape in front view lacking a portion covering the gas-liquid inlet 15 is provided with bolts 51, 51. It is attached in an airtight manner. This connection adapter 50 functions as a valve body of an on-off valve 65 described later. The lid member 12 is provided with a female thread portion 52 for screwing the flange portion of the inflow conduit, and the connection adapter 50 is provided with a flange portion of the inflow and outflow conduits to be described later. Female screw portions 53, 53 and the like for screwing are provided (the internal structure of the connection adapter 50 will be described in detail later).

  Under the lid member 12, a gas-liquid separator 18 having a slightly smaller diameter than the inner diameter of the tank 10 and having an inverted thin bowl shape is in contact with the lower surface of the lid member 12. Is distributed.

  In addition, an upper end portion of the gas-liquid outflow pipe 30 is connected to a lower portion of the gas-phase outlet 17 in the lid member 12.

  Specifically, the gas-liquid outflow pipe 30 is manufactured by extrusion molding using, for example, an aluminum alloy as a raw material, and in addition to FIG. 2, it is only necessary to refer to FIGS. 5 and 6 showing a state before assembly to the tank 10. As can be seen, the outer tube portion 31 has a circular cross-sectional outer shape, and the inside of the outer tube portion 31 is opened on the lower side of the gas-liquid separator 18 so that the gas-phase refrigerant in the upper portion of the tank 10 is supplied to the tank. A pair of left and right (front and rear in the drawing) bottom feed flow path portions 32 and 32 for guiding to the vicinity of the bottom portion 13 of the 10 and the gas-phase refrigerant from the bottom feed flow path portions 32 and 32 are used for the gas phase. A relatively large-diameter upper feed inner pipe portion 33 whose upper portion projects upward from the upper end of the lower feed passage portion 32 and the liquid phase refrigerant in the vicinity of the bottom portion 13 of the tank 10 for leading to the outlet 17. It is divided into a relatively small-diameter liquid-phase inner pipe portion 34 that leads to the liquid-phase outlet 16.

  Note that the height positions of the upper end surfaces 32A, 33A, and 34A of the lower feed flow path section 32, the upper feed inner pipe section 33, and the liquid phase inner pipe section 34 are the upper feed inner pipe section 33 and the liquid phase inner pipe. It becomes low in order of the part 34 and the lower sending flow path part 32. Further, at the height position near the gas-liquid separator 18 in the upper feed pipe section 33, there is a pressure equalizing hole 33f for preventing liquid back to the compressor side when the system is stopped (ON → OFF). Is provided.

  The upper end portion 33 a of the upper feed inner pipe portion 33 in the gas-liquid outflow pipe 30 is thin, and the thin upper end portion 33 a is connected to the through hole 19 provided in the gas-liquid separator 18 and the gas-phase outlet 17. The pipe is passed through the lower part and the upper part is expanded and fixed to an annular recess 17 a formed in the middle part of the gas-phase outlet 17. Thus, the gas-liquid separator 18 is sandwiched and locked between the stepped portion 33b (and the upper end of the liquid phase inner pipe portion 34) provided at the lower end portion of the thin upper end portion 33a and the lower end surface of the lid member 12. At the same time, the gas-liquid outflow pipe 30 is fixedly held by the lid member 12.

  The lowermost end portion of the gas-liquid outflow pipe 30 is a caulking thin portion 30b for caulking and fixing the bottom plate 35, and above the caulking thin portion 30b, in a case 42 of a strainer 40 described later. A lower end thin portion 30a that is slightly thicker than the caulking thin portion 30b and is fitted and fixed to the upper portion 42a with an inner circumferential step by press fitting or the like is provided. In addition, a notch opening 33d is formed at the lower end portion of the wall portion that partitions the upper feed pipe portion 33 and the left and right (front and rear in the drawing) pair of lower feed flow path portions 32, 32 for communicating them. .

  The bottom plate 35 that is caulked and fixed to the lower end (the caulking thin portion 30 b) of the gas-liquid outflow pipe 30 is oiled on the center line of the upper feed inner pipe 33 or in the region inside the upper feed inner pipe 33. A return hole 36 is provided, and a liquid suction port 37 having substantially the same diameter as the liquid phase inner pipe portion 34 is provided at a portion facing the liquid phase inner pipe portion 34. The hole diameter of the oil return hole 36 is set to about 1 mm, for example.

  In addition, a thin outer fitting portion 34 a is provided at the upper end portion of the liquid phase inner pipe portion 34, and a thin inner fitting portion 16 c is provided at the lower end portion of the passage portion 16 a of the liquid phase outlet 16 in the lid member 12. The thin outer fitting portion 34a and the thin inner fitting portion 16c are fitted together, and an O-ring 38 is interposed between the lower end step portion of the thin outer fitting portion 34a and the upper end step portion of the thin inner fitting portion 16c. ing. As a result, the liquid phase inner pipe portion 34 and the liquid phase outlet 16 are hermetically connected.

  The gas-liquid separator 18 is made of a metal such as stainless steel or aluminum alloy, and covers the upper end opening of the lower flow path portion 32 in the gas-liquid outflow pipe 30. ) Is fixedly arranged below the predetermined distance from the lower end surface. The gas-liquid separator 18 is provided with a through hole 19 through which an upper feed inner pipe portion 33 of the gas-liquid outflow pipe 30 and a lower side portion of the passage portion 16a of the liquid phase outlet 16 are inserted, and a lower feed passage. It has a disk-shaped ceiling portion 18a that is opposed to a predetermined distance above the upper end opening of the portion 32, and a cylindrical peripheral wall portion 18b that continues downward from the outer periphery of the ceiling portion 18a.

  On the other hand, a strainer 40 is provided at the lower end of the gas-liquid outflow pipe 30.

  Specifically, the strainer 40 is placed and fixed on the bottom 13 of the tank 10, and as can be understood with reference to FIG. 4, the bottomed cylindrical case 42 made of synthetic resin and the case 42 It consists of a cylindrical mesh filter 45 integrated by insert molding or the like. The mesh filter 45 is made of, for example, a wire mesh or a mesh material made of synthetic resin.

  A case 42 of the strainer 40 is erected at equal angular intervals on an inner circumferential stepped upper portion 42a in which the lower end portion of the gas-liquid outflow pipe 30 is fitted and fixed, a bottom plate portion 42c, and an outer periphery of the bottom plate portion 42c. And four columnar portions 42b connecting the upper portions 42a. An annular connecting band part is provided on the outer periphery of the bottom plate part 42c, and upper and lower ends of the mesh filter 45 are fixed to the connecting band part and the lower side of the upper part 42a. That is, four windows 44 having a rectangular shape in side view are defined between the four columnar portions 42b, and a mesh filter 45 is stretched on each window 44 portion. The mesh filter 45 may be integrated by insert molding when the case 42 is molded. Further, the four columnar portions 42b are provided with gradients for die cutting, but the radial widths of the four columnar portions 42b are substantially equal. Further, the method of providing the mesh filter 45 in the case 42 is not limited to the above.

  Further, in the tank 10, a bag 70 containing a desiccant M having a predetermined height is placed on the bottom 13 along the inner periphery of the tank 10 in order to absorb and remove moisture in the refrigerant. Be present. The bag 70 is made of a cloth-like body such as felt having air permeability, water permeability and required shape retention, and is filled with a granular desiccant M in the bag 70.

  The front left end of the connection adapter 50 mounted on the lid member 12 of the tank 10 having the internal configuration as described above can be understood by referring to FIGS. 7 and 8 in addition to FIGS. As described above, a vertical hole outlet 56 formed of a vertical hole connected to the liquid phase outlet 16 and a horizontal hole outlet 57 formed of a horizontal hole connected to the upper end of the vertical hole outlet 56 are provided. The side hole outlet 57 is open to the front side of the connection adapter 50, and a conduit for guiding the liquid refrigerant to the expansion valve is connected to the side hole outlet 57.

  A relatively large-diameter vertical hole outlet 61 composed of a vertical hole connected to the gas-phase outlet 17 is provided in the vicinity of the central portion of the connection adapter 50 as viewed from the front, and an end on the front side of the vertical hole outlet 61 is provided. A valve body sliding hole 62 having a relatively large diameter and a lateral hole opened on the rear surface side is provided so that the portions overlap. A portion of the front side end portion of the valve body sliding hole 62 that overlaps the vertical hole outlet 61 is a notch opening, and the vertical hole outlet 61 and the valve body sliding hole 62 communicate with each other through the notch opening. It has become.

  In addition, one end side (rear side) opens to the bottom surface (front side surface) of the valve body sliding hole 62 on the front side coaxial with the valve body sliding hole 62 in the connection adapter 50, and the other end side is connected. A gas-phase circulation port 63 comprising a stepped horizontal hole having a smaller diameter than the valve body sliding hole 62 opened in front of the adapter 50 is provided. The gas-phase circulation port 63 is connected to a conduit for guiding the gas-phase refrigerant from the evaporator to the compressor suction side.

  Further, the connection adapter 50 is provided with a lateral hole outlet 64 formed of a relatively large diameter lateral hole having one end opened to the gas-phase circulation port 63 and the other end opened to the right side. The horizontal hole outlet 64 is connected to a conduit for guiding the gas-phase refrigerant to the compressor suction side.

  On the rear surface side of the valve body sliding hole 62, the opening / closing valve 65 is mounted and fixed sideways with a lid-like material 65d closing the rear surface side opening of the valve body sliding hole 62 interposed therebetween. The on-off valve 65 is an electromagnetic type here, and its structure is well known, and is a coil, a suction element, a plunger 65b, and a thick disk-like valve attached and fixed to the tip of the plunger 65b. A valve closing spring composed of a compression coil spring that urges the body 65c and the plunger 65b in a direction (valve closing direction) away from the attractor is provided.

  The valve body 65c is slidably inserted into the valve body sliding hole 62. When the valve body is closed (when the power is OFF), the bottom surface (valve seat) of the valve body sliding hole 62 is shown in FIG. ) To close one end opening of the gas-phase circulation port 63, and the gas-phase refrigerant outlet flow from the vertical hole outlet 61 to the horizontal hole outlet 64 through the valve body sliding hole 62 and the gas-phase circulation port 63. Block the road.

  On the other hand, when the valve is opened (when the power is turned on), as shown in FIG. 8, the valve body 65 c is separated from the bottom surface (valve seat) of the valve body sliding hole 62 and opens at one end of the gas-phase circulation port 63. Is opened so that the gas phase refrigerant flows from the vertical hole outlet 61 to the horizontal hole outlet 64 through the valve body sliding hole 62 and the gas phase circulation port 63.

  The operation | movement at the time of air_conditionaing | cooling operation and heating operation of the refrigerant | coolant container 1 set as such is demonstrated.

  In both the cooling operation and the heating operation, the refrigerant in a gas-liquid mixed state introduced into the tank 10 from the condenser through the gas-liquid inlet 15 is, as shown in FIG. The liquid phase refrigerant (including oil) flows down along the inner peripheral surface of the tank 10 and is separated into a liquid phase refrigerant and a gas phase refrigerant. The gas-phase refrigerant is guided to the upper space of the tank 10.

  During the cooling operation, as shown in FIG. 7, the on-off valve 65 is closed (power OFF), and the one end opening of the gas-phase circulation port 63 is closed by the valve body 65c. Lower feed channel 32 → notch opening 33d → upper feed pipe 33 → gas phase outlet 17 → vertical hole outlet 61 → valve sliding hole 62 → horizontal hole outlet 64 via gas phase flow port 63 Instead, the gas-phase refrigerant lead-out flow path to the evaporator is blocked, and instead, the gas-phase refrigerant from the evaporator is led to the compressor suction side through the gas-phase circulation port 63 → the side hole outlet 64.

  During this cooling operation, the liquid-phase refrigerant accumulated in the lower space of the tank 10 is strained by the strainer 40 (the mesh filter 45) → the liquid suction port 37 of the bottom plate 35 → It is led to the expansion valve via the liquid phase inner pipe section 34 → the liquid phase outlet 16 → the vertical hole outlet 56 → the lateral hole outlet 57.

  Therefore, during this cooling operation, the refrigerant container 1 of the present embodiment functions as a receiver (receiver dryer).

  On the other hand, during heating operation, as shown in FIG. 8, the on-off valve 65 is opened (power ON), and the valve body 65 c is separated from the bottom surface (valve seat) of the valve body sliding hole 62 and is in the gas phase. Since the one end opening of the distribution port 63 is opened, the gas-phase refrigerant separated by the gas-liquid separator 18 passes through the upper space of the tank 10 → the lower feed flow path portion 32 → the notch opening 33 d → the upper feed inner pipe portion 33 → The gas phase outlet 17 → the vertical hole outlet 61 → the valve body sliding hole 62 → the gas phase circulation port 63 → the side hole outlet 64 is directly sucked into the compressor suction side and circulated.

  During this heating operation, the liquid refrigerant accumulated in the lower space of the tank 10 hardly flows to the expansion valve due to the pressure difference.

  Also, the oil that accumulates in the lower space of the tank 10 together with the liquid phase refrigerant moves to the bottom 13 side of the tank 10 due to the difference in specific gravity and properties with the liquid phase refrigerant, and the lower flow path of the gas-liquid outflow pipe 30 Part 32 → Suction by the gas-phase refrigerant sucked into the compressor suction side via the upper feed inner pipe 33, the mesh filter 45 of the strainer 40 → the oil return hole 36 of the bottom plate 35 → the upper feed inner pipe 33 It is returned to the compressor suction side together with the gas-phase refrigerant and circulated. When passing through the mesh filter 45, foreign matter such as sludge is captured, and the foreign matter is removed from the circulating refrigerant (including oil).

  Therefore, during this heating operation, the refrigerant container 1 of the present embodiment functions as an accumulator.

  As described above, the refrigerant container 1 of the present embodiment has both the receiver function and the accumulator function, while the tank part (tank 10), the inlet part (gas-liquid inlet 15), the gas-liquid separation part ( Since the gas-liquid separator 18), the outflow pipe part (gas-liquid outflow pipe 30), and the strainer part (strainer 40) are shared, a rational structure with a small number of parts can be obtained. In the heat pump system in which the container 1 is employed, the space occupied by the entire system can be reduced, the number of parts can be reduced, and cost reduction and downsizing can be effectively achieved.

  Further, an opening / closing valve 65 is attached to the refrigerant container 1 so that the state of functioning as a receiver and the state of functioning as an accumulator can be switched by opening / closing (ON-OFF) of the opening / closing valve 65 according to the operating state of the system. Therefore, the piping system of the system can be simplified as compared with, for example, a case where an on-off valve is provided outside.

  In the above-described embodiment, the gas-phase refrigerant outlet passage to the gas-phase outlet 17 → the vertical hole outlet 61 → the valve body sliding hole 62 → the gas-phase circulation port 63 → the horizontal hole outlet 64 is opened and closed. In addition to that, an opening / closing valve for opening and closing the liquid phase refrigerant outlet flow path from the liquid phase outlet 16 to the vertical hole outlet 56 to the horizontal hole outlet 57 is provided, The on-off valve may be opened / closed in a reverse manner to the gas-phase refrigerant side, and the on-off valves for gas phase and liquid phase may be combined into a four-way valve.

  Further, it is not always necessary to provide the on-off valve and the four-way valve in the refrigerant container 1, and these external flow paths, for example, a flow path connecting the liquid phase outlet and the expansion valve, a gas phase outlet, and the compressor suction side You may make it interpose in the flow path which connects.

DESCRIPTION OF SYMBOLS 1 Refrigerant container 10 Tank 12 Lid member 13 Tank bottom part 15 Gas-liquid inlet 16 Liquid-phase outlet 17 Gas-phase outlet 18 Gas-liquid separator 30 Gas-liquid outlet pipe 31 Outer pipe part 32 Downstream flow path part 33 Upper feed inner pipe section 34 Liquid phase inner pipe section 35 Bottom plate 36 Oil return hole 37 Liquid suction port 40 Strainer 45 Mesh filter 50 Connection adapter 56 Vertical hole outlet 57 Horizontal hole outlet 61 Vertical hole outlet 62 Valve body sliding hole 63 Air Phase outlet 64 Side hole outlet 65 On-off valve 65c Valve element 70 Bag M Desiccant

Claims (6)

  It has a tank that can temporarily store the refrigerant, and a gas-liquid inlet, a liquid-phase outlet, and a gas-phase outlet are provided in the upper part of the tank, and are introduced from the gas-liquid inlet. A receiver function for separating the separated refrigerant into a liquid-phase refrigerant and a gas-phase refrigerant, and leading only the separated liquid-phase refrigerant to the expansion valve side via the liquid-phase outlet, and the separated gas-phase refrigerant A refrigerant container having an accumulator function for deriving the refrigerant to the compressor suction side through the gas-phase outlet with the oil contained in the liquid-phase refrigerant.   The upper surface opening of the tank is hermetically closed by a lid member provided with the gas-liquid inlet, the liquid-phase outlet, and the gas-phase outlet. On the side, a gas-liquid separator having a cap shape or an inverted thin bowl shape smaller than the inner diameter of the tank is disposed, and the upper end of the gas-liquid separator is below the gas-liquid separator between the lid member and the bottom of the tank. A lower feed channel for opening the vapor phase refrigerant at the top of the tank to near the bottom of the tank, and for guiding the gas phase refrigerant from the lower feed channel to the gas-phase outlet. An upper feed inner pipe part whose upper part protrudes above the upper end of the lower feed flow path part, and a liquid phase inner pipe part for guiding the liquid phase refrigerant in the vicinity of the tank bottom part to the liquid phase outlet. A divided gas-liquid outflow pipe is arranged, and a strainer is provided at the lower end of the gas-liquid outflow pipe. Refrigerant container according to claim 1.   The refrigerant container according to claim 2, wherein the gas-liquid separator is sandwiched between the lid member and the gas-liquid outflow pipe.   The refrigerant container according to claim 1, further comprising an on-off valve that opens and closes a gas-phase refrigerant outlet channel in the accumulator function part.   The refrigerant container according to claim 4, wherein the on-off valve is disposed on the upper side of the tank. The refrigerant container according to claim 4 or 5, wherein the on-off valve is of an electromagnetic type.

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